Construction&colon;The alumium conductor alloy reinforced&lpar;ACAR&rpar; has concentrically stranded aluminum 1350-H19 wire around a 6201-T81 aluminum alloy core&period; Typically&comma; the 6201-T81 is the conductor core&comma;but in certain designs&comma; the 1350 H19 and the 6201-T81 wires may be stranded in the same layer&period;